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Old 07-17-2007, 06:24 PM   #1
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Default Nitrogen in my tires

yup cost $20.00 to have all four tires filled with Nitrogen. http://www.getnitrogen.org/ It'* not supposed to heat up and expand like air. Believe it or not I notice a slightly better ride over regular air. Should help with fuel mileage as well but who knows. From what i read i have 97.999999 percent in my tires. I dunno. lighter is faster right.
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Old 07-17-2007, 06:41 PM   #2
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do you think it will help power also if it give better mileage .so if you go at the track friday dont take off air(nitrogen) to get traction
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Old 07-17-2007, 06:44 PM   #3
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It won't do anything for you. It'* somewhat of a scam. It has less moisture content, but frankly, in a daily driver or occasional track car, it'* of no benefit whatsoever.

Please try a search on nitrogen.
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Old 07-17-2007, 06:46 PM   #4
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I likely won't find out this Friday I'm heading to Buffalo tomorrow morning.. One of my buyers is trying to back out of a contract and half of his units have already produced and readied for shipping.... So depending on how thursday goes I might not get back untill friday evening.

But I know for a fact that I can mix air with the Nitrogen if need be I'm looking for a small tank to have filled with Nitrogen for matters like that tho.
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Old 07-17-2007, 06:47 PM   #5
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that what ive been thinking also .and i change pressure in my tires each time i go at the track so not good for me
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Old 07-17-2007, 06:48 PM   #6
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Quote:
Originally Posted by willwren
It won't do anything for you. It'* somewhat of a scam. It has less moisture content, but frankly, in a daily driver or occasional track car, it'* of no benefit whatsoever.

Please try a search on nitrogen.
Well on the highway miles I put on the car it will benefit me on the grounds that it is safer and doesn't expand and contract like normal air. I'm not expecting miracles..
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Old 07-17-2007, 06:49 PM   #7
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Air is ~80% nitrogen.

The wild card for expansion with heat is water (humidity) of the air used to inflate the tire. If a good air drier is used there is no difference in performance of air vs. nitrogen.

High end race teams will use nitrogen because liquid nitrogen takes up less space in the pits than a compressor and drier.
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Old 07-17-2007, 07:52 PM   #8
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Your tires will not expand or contract with compressed air by any measurable or detectable amount.

It will make no difference.

http://www.bargaineering.com/article...*-mileage.html

Quote:
The rate of effusion of a gas is related to the inverse of the square root of the molecular mass of its representative particle. Provided I did the calculations correctly (which I may not have... it'* been 2 years since my last Chemistry course) Nitrogen only would effuse (leak) out of a tire 1.2% slower than an 80-20 mixture.
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Old 07-17-2007, 08:09 PM   #9
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Here is a quote from the link Bill posted; it brushes over the general physics of the debate.

“N2 and air being gases, in the conditions we’re concerned with, will both act ideally (pv=nrt) and so will expand and contract to exactly the same volume at the same temperature. Even using Van Der Waal’* equation to correct for the ever-so-slight deviations from idealness you’d encounter at high tire temp, the difference is so small you probably couldn’t measure it.
Now you may get a difference based on the fact that nitrogen has a slightly higher heat capacity than oxygen (it will reach a slightly lower temperature than oxygen if exposed to the same amount of heat), but the difference is very small, about 3 per cent, and since air is ~78% n2 to begin with, the final difference will be vanishingly small.
Also, someone mentioned that n2 is three times larger than normal air, well, since normal air is, again, 78% n2, that doesnt’ really make sense. It is larger than o2 (which takes up the remaining 22% minus some change), but again, only by a few per cent.”
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Old 07-17-2007, 11:44 PM   #10
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So I wasted $20.00 lol oh well could have been worse and I'm not arguing with the FAA lol
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